P6.12 P90620 Pica d'Estats

#include <iostream>
using namespace std;

bool peak(int n1, int n2, int n3) {
    if (n1<n2&&n2>n3) return true;
    else return false;
}

int main() {
    int n1,n2,n3;
    bool higherPeak=false;
    cin>>n1;
    cin>>n2;
    while(cin>>n3&&n3!=0) {
        if (peak(n1,n2,n3)&&n2>3143) higherPeak=1;
        n1=n2;
        n2=n3;
    }
    if (higherPeak) cout<<"YES"<<endl;
    else cout<<"NO"<<endl;
}